Sociable

The name "sociable" alludes to the relative ease with which the two cyclists can speak with each other, unlike on the tandem.

Bicycling through Time by Paul and Charlie Farren has a picture of a sociable with a frame under each rider and two wheels between them from 1897.

More modern single framed sociables may have started with Australian cyclist Hubert Opperman,[2] although in its basic form the design has been around for longer, since the end of the 19th century.

Historically it has been used as a courting bike; gentlemen would be able to spend time with ladies in an activity that allowed proximity.

no commercially available sociable two-wheelers, although there are plans in circulation by which a person with welding and metal fabrication skills could make one.